feat: make color output opt-in by default

Signed-off-by: Mohammadreza Asadollahifard <mazafard@gmail.com>

pkg/cli/environment.go

@@ -231,8 +231,8 @@ func envColorMode() string {
 			return v
 		}
 	}
-	// Default to auto
-	return "auto"
+	// Default to never (disabled) until more commands support color
+	return "never"
 }
 
 func (s *EnvSettings) EnvVars() map[string]string {

pkg/cmd/root.go

@@ -81,7 +81,7 @@ Environment variables:
 | $HELM_KUBETLS_SERVER_NAME          | set the server name used to validate the Kubernetes API server certificate                                 |
 | $HELM_BURST_LIMIT                  | set the default burst limit in the case the server contains many CRDs (default 100, -1 to disable)         |
 | $HELM_QPS                          | set the Queries Per Second in cases where a high number of calls exceed the option for higher burst values |
-| $HELM_COLOR                        | set color output mode. Allowed values: never, always, auto (default: auto)                                 |
+| $HELM_COLOR                        | set color output mode. Allowed values: never, always, auto (default: never)                                |
 | $NO_COLOR                          | set to any non-empty value to disable all colored output (overrides $HELM_COLOR)                           |
 
 Helm stores cache, configuration, and data based on the following configuration order: